Hamish Knight dad8f13f6e [Sema] Eliminate a subscript AnyObject lookup ambiguity ...

Previously we would always consider an AnyObject
subscript lookup to be ambiguous if there was a
candidate in both a class and protocol, even if
the selectors and types matched. This was due to
the protocol's generic signature preventing the
signatures from being coalesced.

Tweak the logic to strip generic signatures when
comparing for AnyObject lookup, matching what we
do for @objc methods.

Resolves SR-8611.
Resolves rdar://43645564 & rdar://62906344.

2020-05-12 21:23:34 -07:00

164 KiB

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